Sales and Trade 
Bukhari :: Book 3 :: Volume 34 :: Hadith 384
Narrated Abu Said:
(Concerning exchange) that he heard Allah's Apostle saying, "Do not sell gold for gold unless equal in weight, and do not sell silver unless equal in weight."
Sales and Trade
Bukhari :: Book 3 :: Volume 34 :: Hadith 384
Narrated Abu Said:
(Concerning exchange) that he heard Allah's Apostle saying, "Do not sell gold for gold unless equal in weight, and do not sell silver unless equal in weight."